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ChatGPT

OpenAI's flagship conversational AI, powered by the GPT-4o multimodal model. Supports text, voice, image, and video interaction. Features a code interpreter, file upload analysis, web search, DALL·E image generation, and custom GPTs. Covers everyday Q&A, professional writing, coding assistance, and data analysis. Free tier includes GPT-4o-mini; Plus subscription unlocks full capabilities.

Claude

Anthropic's conversational AI with a 200K ultra-long context window, excelling at deep analysis, long document processing, and complex reasoning. Features Artifacts live preview, project-level knowledge bases, and multimodal understanding. Outstanding in coding, academic research, and creative writing, known for safety and accuracy.

DeepSeek

AI assistant by DeepSeek, renowned for powerful reasoning and coding capabilities. Supports 128K+ long context, top-tier in mathematical reasoning, algorithmic programming, and academic research. Fully open-source with extremely low API pricing and free basic features — the go-to domestic AI tool for programmers and researchers.

豆包

ByteDance's all-in-one AI assistant with 300M+ monthly active users, the #1 domestic AI by user count. Best-in-class Chinese understanding with smooth voice interaction. Excels at daily Q&A, copywriting, short video scripts, and English speaking practice. Free basic tier, integrated with Douyin and Toutiao ecosystems.

Kimi

AI assistant by Moonshot AI, specializing in ultra-long text processing with 2M character lossless context. Can parse lengthy papers, legal contracts, and industry reports in one go. Supports PDF/Word/Excel uploads. Outstanding deep reasoning and AI Agent capabilities — the best domestic tool for literature research and long document analysis.

通义千问

Alibaba's enterprise-grade AI assistant with well-rounded capabilities. Deeply integrated with DingTalk, Taobao, and Alibaba Cloud ecosystems. Excels at document processing, spreadsheet analysis, PPT generation, and e-commerce operations. Supports image understanding and multimodal interaction, ideal for enterprise office and business analysis.